1997537280

素因数分解:

$2^{20}\times 3^1\times 5^1\times {\mathrm{127}}^1$

素因数の和:175

約数の個数: 168

約数和(自身を含む): 6442447872

約数和(自身を除く): 4444910592

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 127, 128, 160, 192, 240, 254, 256, 320, 381, 384, 480, 508, 512, 635, 640, 762, 768, 960, 1016, 1024, 1270, 1280, 1524, 1536, 1905, 1920, 2032, 2048, 2540, 2560, 3048, 3072, 3810, 3840, 4064, 4096, 5080, 5120, 6096, 6144, 7620, 7680, 8128, 8192, 10160, 10240, 12192, 12288, 15240, 15360, 16256, 16384, 20320, 20480, 24384, 24576, 30480, 30720, 32512, 32768, 40640, 40960, 48768, 49152, 60960, 61440, 65024, 65536, 81280, 81920, 97536, 98304, 121920, 122880, 130048, 131072, 162560, 163840, 195072, 196608, 243840, 245760, 260096, 262144, 325120, 327680, 390144, 393216, 487680, 491520, 520192, 524288, 650240, 655360, 780288, 786432, 975360, 983040, 1040384, 1048576, 1300480, 1310720, 1560576, 1572864, 1950720, 1966080, 2080768, 2600960, 2621440, 3121152, 3145728, 3901440, 3932160, 4161536, 5201920, 5242880, 6242304, 7802880, 7864320, 8323072, 10403840, 12484608, 15605760, 15728640, 16646144, 20807680, 24969216, 31211520, 33292288, 41615360, 49938432, 62423040, 66584576, 83230720, 99876864, 124846080, 133169152, 166461440, 199753728, 249692160, 332922880, 399507456, 499384320, 665845760, 998768640, 1997537280]

約数ペア:

[(1, 1997537280), (2, 998768640), (3, 665845760), (4, 499384320), (5, 399507456), (6, 332922880), (8, 249692160), (10, 199753728), (12, 166461440), (15, 133169152), (16, 124846080), (20, 99876864), (24, 83230720), (30, 66584576), (32, 62423040), (40, 49938432), (48, 41615360), (60, 33292288), (64, 31211520), (80, 24969216), (96, 20807680), (120, 16646144), (127, 15728640), (128, 15605760), (160, 12484608), (192, 10403840), (240, 8323072), (254, 7864320), (256, 7802880), (320, 6242304), (381, 5242880), (384, 5201920), (480, 4161536), (508, 3932160), (512, 3901440), (635, 3145728), (640, 3121152), (762, 2621440), (768, 2600960), (960, 2080768), (1016, 1966080), (1024, 1950720), (1270, 1572864), (1280, 1560576), (1524, 1310720), (1536, 1300480), (1905, 1048576), (1920, 1040384), (2032, 983040), (2048, 975360), (2540, 786432), (2560, 780288), (3048, 655360), (3072, 650240), (3810, 524288), (3840, 520192), (4064, 491520), (4096, 487680), (5080, 393216), (5120, 390144), (6096, 327680), (6144, 325120), (7620, 262144), (7680, 260096), (8128, 245760), (8192, 243840), (10160, 196608), (10240, 195072), (12192, 163840), (12288, 162560), (15240, 131072), (15360, 130048), (16256, 122880), (16384, 121920), (20320, 98304), (20480, 97536), (24384, 81920), (24576, 81280), (30480, 65536), (30720, 65024), (32512, 61440), (32768, 60960), (40640, 49152), (40960, 48768)]